In fact, pneumatic systems and electric systems are not mutually exclusive. Pneumatic actuators can simply realize rapid linear circulation movement, simple structure, convenient maintenance, and can be used in various harsh working environments, such as explosion-proof requirements, dusty or humid conditions
Compact structure and small size. Compared with pneumatic actuators, electric actuators are relatively simple in structure. A basic electronic system includes actuators, three-position DPDT switches, fuses and some wires, which are easy to assemble.
Pneumatic actuators have good adaptability to the working environment, especially in harsh working environments such as flammable, explosive, dusty, strong magnetism, radiation and vibration, and are superior to hydraulic, electronic, and electrical control.
When the double acting pneumatic actuator air source pressure enters the cavity between the two pistons of the cylinder from the air port (2), the two pistons are separated and moved toward the ends of the cylinder, and the air in the air chambers at both ends is discharged through the air port (4), and the two piston racks are synchronized at the same time Drive the output shaft (gear) to rotate counterclockwise.
The pneumatic actuator adopts compact double-piston gears, rack-and-pinion structure, precise meshing, high efficiency, and constant output torque.
The electric actuator refers to an electrical signal such as an electrical signal such as an energy source in the control system. The amount of manipulation is changed according to the size of the signal, so that the amount of material or energy of the input or output control object changes, reachabable Adjustable.